Home / 30,721.68-46,075.23-8,535.78

Finding the Fourth Proportional to 30,721.68, 46,075.23 and 8,535.78

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Solution

The fourth proportional to 30,721.68, 46,075.23 and 8,535.78 is: 12,801.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,721.68 : 46,075.23 = 8,535.78 : x
  2. Step 2: Convert to fraction form
    30,721.68/46,075.23 = 8,535.78/x
  3. Step 3: Cross multiply
    30,721.68x = 46,075.23 × 8,535.78
  4. Step 4: Simplify right side
    30,721.68x = 393,288,026.73
  5. Step 5: Solve for x
    x = 393,288,026.73/30,721.68
  6. Step 6: Final answer
    x = 12,801.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.